FERRORESONANT OVERVOLTAGES IN GROUNDED WYE-WYE PADMOUNT TRANSFORMERS WITH LOW-LOSS SILICON-STEEL CORES

Authors
WALLING RA COMPTON TM BUCH JF LUKECART BW BARKER KD ZIMMERMAN LE SMITH DR SHORT TA STUGHM DL MORK BA MAIRS DD
Citation
Ra. Walling et al., FERRORESONANT OVERVOLTAGES IN GROUNDED WYE-WYE PADMOUNT TRANSFORMERS WITH LOW-LOSS SILICON-STEEL CORES, IEEE transactions on power delivery, 8(3), 1993, pp. 1647-1660
Citations number
21
Categorie Soggetti
Instument & Instrumentation","Engineering, Eletrical & Electronic
Journal title
IEEE transactions on power delivery → ACNP
ISSN journal
08858977
Volume
8
Issue
3
Year of publication
1993
Pages
1647 - 1660
Database
ISI
SICI code
0885-8977(1993)8:3<1647:FOIGWP>2.0.ZU;2-U
Abstract
Reduced no-load losses have resulted in increased susceptibility to fe rroresonance of modern grounded wye-wye three-phase distribution trans formers using five-leg silicon-Steel wound cores. This paper describes the results of an extensive test program which determined that overvo ltages are directly related to the ratio of capacitive susceptance div ided by core losses and the conventional use of rated exciting current can be a misleading indicator of ferroresonance susceptibility.